%0 Journal Article
%A Yin, Jing-Wei
%A Wang, Yan
%A Chen, Yue-Hua
%A Wu, Sheng-Qiang
%A Cheng, Shao-Dong
%A Mi, Shao-Bo
%A Lu, Lu
%A Jin, Lei
%A Wang, Hong
%T Growth and characterization of pyrochlore-type (Ca,Ti)2(Nb,Ti)2O7 thin films
%J Thin solid films
%V 721
%@ 0040-6090
%C Amsterdam [u.a.]
%I Elsevier
%M FZJ-2021-00854
%P 138546 -
%D 2021
%X Pyrochlore-type (Ca,Ti)2(Nb,Ti)2O7 thin films have been grown on single-crystalline LaAlO3 and yttria-stabilized zirconia substrates by a magnetron sputtering system. Atomic-scale interface structure and growth mode of the (Ca,Ti)2(Nb,Ti)2O7 films on the substrates with different crystal structures have been investigated by advanced electron microscopy techniques. In both heterosystems, the film/substrate orientation relationship of [100](001)film//[100](001)substrate has been determined. In the heterosystem of (Ca,Ti)2(Nb,Ti)2O7/yttria-stabilized zirconia, the films directly grow on the substrates. In contrast, in the (Ca,Ti)2(Nb,Ti)2O7/LaAlO3 heterosystem, a perovskite-type Ca1-□(Ti,Nb)O3 interlayer with a few unit cells in thickness forms at the interface and interfacial reconstruction occurs at the (Ca,Ti)2(Nb,Ti)2O7/Ca1-□(Ti,Nb)O3 interface. Our findings indicate that the formation of the interlayer and the (Ca,Ti)2(Nb,Ti)2O7/Ca1-□(Ti,Nb)O3 interface reconstruction can accommodate the film/substrate dissimilarities in the crystal structures and facilitate the growth of single-crystalline pyrochlore-type films on the perovskite-type substrates.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000621728300003
%R 10.1016/j.tsf.2021.138546
%U https://juser.fz-juelich.de/record/890273